mirror of
https://github.com/unknwon/the-way-to-go_ZH_CN.git
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c588ddea2d
* Cose unclosed files * Close additional unclosed file * Dont use defer in loop * Removed missed instances of defer in loop
30 lines
537 B
Go
30 lines
537 B
Go
// read_files.go
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package main
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import (
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"bufio"
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"flag"
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"fmt"
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"io"
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"os"
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)
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func main() {
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fmt.Printf("Reading files...\n")
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flag.Parse()
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for i := 0; i < flag.NArg(); i++ {
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fmt.Printf("[File: %v]\n", flag.Arg(i))
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fin, err := os.Open(flag.Arg(i))
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if err != nil {
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fmt.Printf("The file %v does not exist!\n", flag.Arg(i))
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break
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}
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r := bufio.NewReader(fin)
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for line, _, err := r.ReadLine(); err != io.EOF; line, _, err = r.ReadLine() {
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fmt.Printf("Lines: %v (error %v)\n", string(line), err)
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}
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fin.Close()
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}
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}
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